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New chip_temp module wraps the ESP32-P4 TSENS driver (20-100C range
for best accuracy in the warm band a PoE + 200MHz-PSRAM device
lives in). /state gains temp_c (0.1C resolution, omitted when the
sensor is unavailable); the long-press info overlay gains a temp
line (lowercase c suffix — the local 8x8 font has no uppercase C).
Junction temperature, ~10-20C above ambient under load.
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- Seed viewport_name with the full base MAC, colons stripped
(e8:f6:0a:e0:90:94 → "e8f60ae09094"). Stable across reboots, globally
unique, 12 alphanumeric chars — well inside the mDNS hostname limit
even with the "viewport-" prefix.
- Add a mac_str field to viewport_state and expose it as the new "mac"
key in GET /state and as a "mac" line on the info screen.
- "Configured" no longer requires a viewport_name (it always has the
MAC default); the scrypted URL alone gates outbound POSTs and the
loading-vs-info screen choice.
- Strip viewport_name[0] fallbacks in http_api / mdns / local_screens
now that the field is never empty.
- Replace the wake-on-boot-stays-on behaviour with a ~600 ms flash
followed by sleep — long enough for the FT5426 touch IC to come out
of its initial unresponsive state, short enough that an idle device
doesn't burn the backlight.
- Drop the touch defensive cruft added when we were chasing a PoE-power
theory: the DEV_MODE=0x00 write at init, the touch_reset_pulse() call
at init, and the runtime wedge-self-heal in the polling loop didn't
actually fix anything — the wake-on-boot flash did. Also delete the
display_touch_reset_pulse() helper since it now has zero callers.
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Code-review pass after the M5 colour fix. -126 net lines (-215 / +89).
Dead code removed:
- display_fill, display_test_pattern — M3 bring-up self-tests, no callers
- net_eth_is_up — no callers
- nvs_config_reset — no callers (factory-reset gesture was removed earlier;
NVS wipe now goes through `idf.py erase-flash`)
Helpers inlined or collapsed (each had one call site):
- state_name / orientation_name — ternaries at the cJSON site
- fmt_bytes / fmt_uptime — inline scope in local_screens_show_info
- expected_dims (http_api) + effective_dims (local_screens) — merged into
viewport_state_effective_dims() in viewport_state, one canonical source
state_machine cleanup:
- arm_idle_timer_unlocked / disarm_idle_timer collapsed to one arm_idle_timer(ms)
that takes the snapshotted timeout (ms==0 disables). Removes the misleading
name and the second viewport_state lock acquisition per painted frame.
- state_machine_set + state_machine_frame_painted now snapshot state + idle_ms
under one lock.
mdns_service cleanup:
- snapshot_state / apply_hostname / apply_txt collapsed into a single
apply_state(include_hostname) helper; mdns_service_start grabs hostname
once for hostname_set + log instead of going under the lock three times.
http_api cleanup:
- POST /config brightness-changed path uses the local `bright` it already
validated instead of re-locking + re-reading st->brightness.
- Trimmed verbose bring-up comments (stack-size justification, M5 saga,
DSI shadow struct) to one line each — kept the load-bearing facts.
Smoke-tested on hardware: boot clean, display + JPEG + touch all up
([DJT]), info screen renders, no crashes.
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\`state\` now reports only the screen's runtime state (awake or asleep).
Whether a viewport is set up to talk to Scrypted is a separate
\`configured\` flag, derived from \`viewport_name && scrypted_url\`.
There's no third state.
Behaviour changes:
- POST /state always succeeds; the previous 409 "device unconfigured"
path is gone. The screen toggles regardless of /config status.
- POST /config now sets \`configured\` directly from the derived
predicate instead of mutating the state enum.
- Outbound state-client POST to Scrypted is still gated on a scrypted
URL being present — that's the only thing the configured flag now
actually controls in the runtime path.
GET /state JSON unchanged in shape, but \`state\` is now never
"unconfigured" — that's reported through the existing \`configured\`
boolean instead.
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Previously the 4-line "identity" screen showed only viewport name, mDNS
host, IP, and state. Expanded to 15 lines covering the full GET /config
+ GET /state output (name, host, ip, state, configured, scrypted,
orientation, brightness, idle, fw, uptime, frames, errs, free heap,
free PSRAM), label/value pairs left-aligned with auto-scaled font.
Renames "identity" → "info" throughout — symbol, log messages,
README/TESTING references.
Also:
- Move the info-screen render's big locals (~1.6 KiB: lines[16][80] +
scrypt[256] + vp_name[64]) to BSS. The touch task's 3 KiB stack
was overflowing on every long-press, leaving whatever frame was
previously on the panel — gave the appearance of a "blue screen"
after the M5 test pattern.
- Drop the ≥5 s touch factory-reset gesture and remove all stale
references to it in docs and comments. NVS wipe is now a USB-side
`idf.py erase-flash` operation only.
- M5 follow-up TODO in jpeg_decoder.c: solid green renders ~black and
solid blue renders green; not a byte-order issue (BGR setting turns
red into blue). Tracked as a known M5 gap.
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DSI / panel:
- LDO_VO3 acquired at 2500 mV (VDD_MIPI_DPHY) — without this the PHY
PLL busy-waits forever inside esp_lcd_new_dsi_bus.
- PSRAM bumped to 200 MHz (CONFIG_IDF_EXPERIMENTAL_FEATURES) to keep
the DPI fed without underruns.
- Pi-7"-style 800x480 panel init (REG_POWERON, PORTA/PORTB/PWM/PORTC)
+ 16-bit RGB565 framebuffer with portrait-mode rotation buffer in
PSRAM. Currently shows garbled output — known issue, next commit
switches to the TC358762-bridge-aware init sequence.
State + UX:
- viewport_state simplified to AWAKE/ASLEEP only; "unconfigured" is
a flag, not a state. Tap always toggles; content choice (identity
vs frame) is driven by the configured flag.
- BOOT button arms a 15 s identity overlay via local_screens_overlay;
expired callback returns to prior state.
- Boot-done indicator: two backlight flashes (no usable LED GPIO on
the Waveshare board — GPIO 35 BOOT is shared with EMAC TXD1).
- Best-effort subsystem init in app_main; display init deferred to
its own task so a panel hang can't block networking.
Display test pattern: solid R/G/B for 2 s each on boot to characterize
the garble independent of text rendering.
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local_screens_show_ip() now renders four lines instead of two —
all the device's runtime identity at once:
line 1: viewport name ("mudroom" / "viewport" if unconfigured)
line 2: mDNS hostname ("viewport-mudroom.local" / "viewport.local")
line 3: IP ("192.168.1.42" / "no network")
line 4: state ("awake" / "asleep" / "unconfigured")
Same screen is shown on first boot, after factory reset, and as a
15s BOOT short-press overlay — operator always has the device's full
identity one button-press away (find it on the LAN, confirm name +
configuration without curling).
Font scale is auto-picked: the largest integer scale (1×–6×) where
the longest line fits within 90% of width AND all four lines plus
inter-line spacing fit within 90% of height. Works for both portrait
(480×800) and landscape (800×480) without separate code paths.
Font expanded to cover the new strings:
- All lowercase a–z (added b, f, h, j, k, m, q, s, u, x, y, z).
- Punctuation: dash, slash (digits, period, colon already covered).
Fallback policy unchanged: unsupported chars render as blank, which
keeps the table tight and the failure mode visible rather than
crashing.
README "Local rendering" + TESTING.md M8 updated to describe the
four-line identity layout and show both the unconfigured-boot and
configured-overlay example outputs.
Build verified clean against ESP-IDF 5.4 (binary ~873 KB, +1.6 KB
for the expanded font).
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local_screens.{h,c}:
- Embedded 8x8 bitmap font sized to a 95-char table; only the glyphs
used by today's strings (viewport.local, the IPv4 string, Loading...)
are populated. Unsupported chars render blank.
- 768 KB PSRAM scratch FB at panel-native dims.
- local_screens_show_ip() — two centered lines:
"viewport.local"
<current IP>
Scale 3x portrait / 4x landscape; centered vertically.
- local_screens_show_loading() — centered "Loading..." at scale 4x/5x.
- local_screens_restore_for_state() — repaint after BOOT-overlay expiry:
UNCONFIGURED -> IP screen; AWAKE/ASLEEP -> black FB (next /frame or
sleep handles the rest).
- All paths go through display_present_rgb565() so orientation rotation
is automatic.
button.{h,c}:
- Polling task at 30ms, active-low with internal pull-up.
- Short press (<5s, released) → backlight on, IP overlay for 15s via
esp_timer one-shot, then restore.
- Hold ≥ 5s → nvs_config_reset() + esp_restart().
- PIN_BOOT_BUTTON = GPIO 0 is a TODO placeholder. ESP32-P4 strap pin
GPIO35 is owned by RMII TXD1 at runtime so Waveshare must expose a
separate user button on a free pin; confirm against the schematic.
Fail-soft if mis-wired: input reads stuck-high and the task never
fires.
state_machine on AWAKE transition now calls local_screens_show_loading()
right after display_wake() — so every wake (tap or POST /state) flashes
a clear "Loading..." until the next /frame paints over it.
app_main on boot:
- Calls local_screens_init() after display_init().
- UNCONFIGURED → paint IP screen (replaces the M3 test pattern).
- ASLEEP → backlight off (unchanged).
- After all subsystems: button_init().
Build clean against ESP-IDF 5.4 (binary ~870 KB; the font/glyph data is
under 800 bytes).
TESTING.md M8 documents the visual checks, the BOOT-pin placeholder
caveat, the AWAKE-overlay-overwrite behavior, the open follow-up about
post-overlay backlight when ASLEEP, and the font fallback policy.
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